胡学文,何博,石践,刘浩成,高秀华,邱志永,杜林秀,吴红艳

• 1:马鞍山钢铁股份有限公司技术中心
• 2:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

以10%H_2SO_4+3.5%NaCl和20%H_2SO_4+3.5%NaCl的混合溶液为腐蚀介质,在室温条件下对不同锑含量的耐酸钢和Q345B钢进行了全浸腐蚀实验,对比研究了铁路货车用耐酸钢和对比钢Q345B的腐蚀行为。结果表明:在10%H_2SO_4+3.5%NaCl环境下,Q345B腐蚀速率为4.95 mm/a,两种不同含Sb耐酸腐蚀钢的耐蚀性能良好。随着Sb含量增加,腐蚀速率下降,0.12%Sb耐酸钢腐蚀速率为0.66 mm/a,相对于Q345B的腐蚀速率为13%。合金元素锑的添加有效地提高了钢的耐硫酸腐蚀性能。随着硫酸浓度上升,0.06%Sb钢腐蚀速率从1.235 mm/a下降到1.031 mm/a。

关键词(KeyWords)： 耐酸钢;热轧;全浸腐蚀实验;硫酸浓度;锑

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 胡学文,何博,石践,刘浩成,高秀华,邱志永,杜林秀,吴红艳

DOI: 10.13289/j.issn.1009-6264.2020-0057

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